{"product_id":"westinghouse-632425r-furnace-pressure-switch-0-55-in-wc","title":"Westinghouse 632425R Furnace Pressure Switch 0.55 in Wc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WESTINGHOUSE 632425R is a single-port, single-pole single-throw (SPST) pressure switch designed for use in gas furnace systems. Rated at 0.55 inches water column (WC), this normally open (NO) switch monitors negative pressure generated by the inducer motor during furnace operation. When the inducer establishes the correct draft, the switch closes to signal the control board that combustion airflow is adequate. HVAC technicians install this switch as a direct replacement in residential and light-commercial furnace applications where draft-proving is required by the control sequence.\u003c\/p\u003e\u003cp\u003eThis pressure switch is intended for gas furnace installations where the inducer-driven draft must be verified before ignition is permitted. It is suited for residential furnaces that require a 0.55-inch WC set point for proper pressure sensing. The single-port design connects to one hose barb on the inducer housing or collector box. Technicians working on mid-efficiency or condensing furnaces that have lost draft-proving function will find this a straightforward OEM-style replacement.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.55 inches WC set point for accurate draft-proving in the furnace control sequence\u003c\/li\u003e\n\u003cli\u003eNormally open (NO) contact configuration closes on sufficient negative pressure\u003c\/li\u003e\n\u003cli\u003eSingle-port, single-pole single-throw (SPST) design for simplified hose routing\u003c\/li\u003e\n\u003cli\u003eDirect replacement form factor reduces installation time\u003c\/li\u003e\n\u003cli\u003eCompatible with standard furnace pressure switch hose barb connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement pressure switch for residential and light-commercial gas furnace systems requiring a 0.55-inch WC normally open draft-proving switch.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed HVAC technician should install this switch. Before servicing, shut off power to the furnace at the disconnect and turn off the gas supply. Disconnect the existing pressure switch hose and electrical connector before removing the switch, and inspect the port hose for cracks or blockages that may have caused the original failure. Verify the replacement set point matches the furnace manufacturer's specification before restoring power.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Pressure Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Point\u003c\/strong\u003e: 0.55 inches WC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration\u003c\/strong\u003e: Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Action\u003c\/strong\u003e: SPST (Single-Pole Single-Throw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Configuration\u003c\/strong\u003e: Single Port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WESTINGHOUSE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 632425R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WESTINGHOUSE","offers":[{"title":"Default Title","offer_id":51284155695410,"sku":"632425R","price":36.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277898.jpg?v=1781069992","url":"https:\/\/voomisupply.com\/products\/westinghouse-632425r-furnace-pressure-switch-0-55-in-wc","provider":"Voomi Supply","version":"1.0","type":"link"}